4971478 has 4 divisors (see below), whose sum is σ = 7457220. Its totient is φ = 2485738.

The previous prime is 4971443. The next prime is 4971493. The reversal of 4971478 is 8741794.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 4971478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1242868 + ... + 1242871.

It is an arithmetic number, because the mean of its divisors is an integer number (1864305).

Almost surely, 2^4971478 is an apocalyptic number.

4971478 is a deficient number, since it is larger than the sum of its proper divisors (2485742).

4971478 is a wasteful number, since it uses less digits than its factorization.

4971478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485741.

The product of its digits is 56448, while the sum is 40.

The square root of 4971478 is about 2229.6811431234. The cubic root of 4971478 is about 170.6718282198.

The spelling of 4971478 in words is "four million, nine hundred seventy-one thousand, four hundred seventy-eight".